The Bay Area does not need Hetch Hetchy reservoir to continue delivery of high-quality water from the Tuolumne River.

Several independent and peer-reviewed studies have shown that modifying the Hetch Hetchy aqueduct to take water from Cherry Reservoir or the much larger Don Pedro Reservoir downstream (built in 1971) would allow the Bay Area to receive full deliveries of its current supplies in almost all years, with only small shortages in remaining years.

Remaining shortages could be supplied from various state, federal, and local sources, including water purchases from agricultural areas, groundwater, and Bay Area water conservation. Read more at http://www.sfgate.com/default/article/Restore-Hetch-Hetchy-Valley-385466...